477915820 has 12 divisors (see below), whose sum is σ = 1003623264. Its totient is φ = 191166320.

The previous prime is 477915811. The next prime is 477915847. The reversal of 477915820 is 28519774.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11947876 + ... + 11947915.

It is an arithmetic number, because the mean of its divisors is an integer number (83635272).

Almost surely, 2^477915820 is an apocalyptic number.

It is an amenable number.

477915820 is an abundant number, since it is smaller than the sum of its proper divisors (525707444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

477915820 is a wasteful number, since it uses less digits than its factorization.

477915820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23895800 (or 23895798 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 477915820 is about 21861.2858725190. The cubic root of 477915820 is about 781.8386495207.

The spelling of 477915820 in words is "four hundred seventy-seven million, nine hundred fifteen thousand, eight hundred twenty".